AdddmInitn
                Mandatory
                Hdr
                Mandatory
                Body
                Optional
                Envt
                Mandatory
                Cntxt
                Optional
                Tx
                Mandatory
                AdddmData
                Mandatory
                PrtctdData
                Repetition (0..n)
                CnttTp
                Mandatory
                EnvlpdData
                Optional
                Vrsn
                Optional
                Rcpt
                Repetition (1..n)
                KeyTrnsprt
                Choice
                KEK
                Choice
                Vrsn
                Optional
                KEKId
                Mandatory
                Key Encryption Algorithm
KeyNcrptnAlgo
                Mandatory
                Definition: Algorithm to encrypt the key encryption key (KEK).
Type: AlgorithmIdentification28
Algo
                Mandatory
                Param
                Optional
                NcrptdKey
                Optional
                KeyIdr
                Choice
                NcrptdCntt
                Optional
                NcrptdData
                Optional
                SplmtryData
                Repetition (0..n)
                SctyTrlr
                Optional